WAAM integrated into hybrid additive-subtractive manufacturing processes

The application of Wire Arc Additive Manufacturing (WAAM) within a combined additive-subtractive manufacturing chain is being investigated. This approach aims to leverage the strengths of both processes to create complex and high-precision parts.

WAAM is a metal additive manufacturing technology that uses an electric arc to melt wire feedstock, depositing material layer by layer to build up a component. This is often followed by subtractive machining processes, such as milling or turning, to achieve final dimensions and surface finishes. The integration of these two methodologies seeks to optimize the production of large metal structures.

The hybrid approach offers potential advantages over purely additive or subtractive methods. For instance, WAAM can rapidly build near-net-shape components, reducing material waste and manufacturing time compared to traditional subtractive methods alone. Subsequent subtractive steps can then refine critical features, improve tolerances, and enhance surface quality where needed.

This development is part of a broader trend toward more sophisticated additive manufacturing strategies. By combining WAAM's bulk material deposition capabilities with the precision of subtractive machining, manufacturers can potentially produce a wider range of complex geometries with improved performance characteristics. The research explores how to seamlessly transition between these processes within a single manufacturing workflow.